mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-23 21:23:56 +00:00
88 lines
2.1 KiB
Rust
88 lines
2.1 KiB
Rust
#![feature(plugin)]
|
|
#![plugin(clippy)]
|
|
|
|
fn get_number() -> usize {
|
|
10
|
|
}
|
|
|
|
fn get_reference(n : &usize) -> &usize {
|
|
n
|
|
}
|
|
|
|
#[allow(many_single_char_names)]
|
|
#[allow(unused_variables)]
|
|
#[deny(deref_addrof)]
|
|
fn main() {
|
|
let a = 10;
|
|
let aref = &a;
|
|
|
|
let b = *&a;
|
|
//~^ERROR immediately dereferencing a reference
|
|
//~|HELP try this
|
|
//~|SUGGESTION let b = a;
|
|
|
|
let b = *&get_number();
|
|
//~^ERROR immediately dereferencing a reference
|
|
//~|HELP try this
|
|
//~|SUGGESTION let b = get_number();
|
|
|
|
let b = *get_reference(&a);
|
|
|
|
let bytes : Vec<usize> = vec![1, 2, 3, 4];
|
|
let b = *&bytes[1..2][0];
|
|
//~^ERROR immediately dereferencing a reference
|
|
//~|HELP try this
|
|
//~|SUGGESTION let b = bytes[1..2][0];
|
|
|
|
//This produces a suggestion of 'let b = (a);' which
|
|
//will trigger the 'unused_parens' lint
|
|
let b = *&(a);
|
|
//~^ERROR immediately dereferencing a reference
|
|
//~|HELP try this
|
|
//~|SUGGESTION let b = (a)
|
|
|
|
let b = *(&a);
|
|
//~^ERROR immediately dereferencing a reference
|
|
//~|HELP try this
|
|
//~|SUGGESTION let b = a;
|
|
|
|
let b = *((&a));
|
|
//~^ERROR immediately dereferencing a reference
|
|
//~|HELP try this
|
|
//~|SUGGESTION let b = a
|
|
|
|
let b = *&&a;
|
|
//~^ERROR immediately dereferencing a reference
|
|
//~|HELP try this
|
|
//~|SUGGESTION let b = &a;
|
|
|
|
let b = **&aref;
|
|
//~^ERROR immediately dereferencing a reference
|
|
//~|HELP try this
|
|
//~|SUGGESTION let b = *aref;
|
|
|
|
//This produces a suggestion of 'let b = *&a;' which
|
|
//will trigger the 'deref_addrof' lint again
|
|
let b = **&&a;
|
|
//~^ERROR immediately dereferencing a reference
|
|
//~|HELP try this
|
|
//~|SUGGESTION let b = *&a;
|
|
|
|
{
|
|
let mut x = 10;
|
|
let y = *&mut x;
|
|
//~^ERROR immediately dereferencing a reference
|
|
//~|HELP try this
|
|
//~|SUGGESTION let y = x;
|
|
}
|
|
|
|
{
|
|
//This produces a suggestion of 'let y = *&mut x' which
|
|
//will trigger the 'deref_addrof' lint again
|
|
let mut x = 10;
|
|
let y = **&mut &mut x;
|
|
//~^ERROR immediately dereferencing a reference
|
|
//~|HELP try this
|
|
//~|SUGGESTION let y = *&mut x;
|
|
}
|
|
}
|